A roadside mowing crew discovered the remains in a garbage bag along Interstate 30 near Fulton, Arkansas, Hempstead County Sheriff James Singleton told CNN affiliate KTAL.

The remains will be processed by Arkansas State Police before they are sent to the medical examiner in Harris County, Texas, Skillern said.

Local authorities began searching the area Friday after Houston police alerted them that evidence linked to missing 4-year-old girl’s case could be there.

Houston police detectives along with a search and rescue team headed to Arkansas Friday after the man who had been watching Maleah allegedly confessed to dumping her body there.

Tim Miller, the director of Texas EquuSearch, said the search and rescue organization is chartering a private plane, and Houston police tweeted that homicide detectives also were in route.

Earlier on Friday, suspect Derion Vence allegedly confessed that he dumped her body in Arkansas, according to an activist who spoke with him in jail.

“One thing he wanted to make clear to me was (that) what happened to Maleah was an accident, he says it was an accident. And he confessed to me where he dumped the body,” Houston community activist Quanell X told CNN affiliate KTRK.

“He said he pulled over in Arkansas, got out of the car, walked to the side of the road, and dumped the body off the road,” said Quanell, who used to represent the girl’s mother.

Vence, 26, has been charged with tampering with evidence in connection with the case. He was engaged to Brittany Bowens, Maleah’s mother, and was taking care of Maleah and his son when she went missing on May 4.